VS1005 Ogg Vorbis encoder bandwidth

Discussion about writing software for VS1005 and the VSOS Operating System. Also posts about VS1005-related hardware design and device drivers should be posted here.
cruedag
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Re: VS1005 Ogg Vorbis encoder bandwidth

Post by cruedag » Mon 2018-02-12 10:32

Hi again, Henrik.

Thanks a lot for your work. I've just tried this last? version and it doesn't accomplish full bandwith yet. I wrote last? because the date signature of the dll is 14/12/2017, and don't know if it is the right file or not.

This time I've seen an interesting spectrum response, with the first miliseconds of recording with full bandwith and then suddenly cutting again to 20kHz.

Best regards
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strange spectrum.png
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Henrik
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Re: VS1005 Ogg Vorbis encoder bandwidth

Post by Henrik » Mon 2018-02-12 10:59

AAAAARGH!

That would be because I accidentally zipped the DL3 from the wrong directory, so it was the old version instead of the shiny, new, and tested-with-ultrasound one. Here, attached to this message should finally be the correct one. I am really sorry for the confusion!

Kind regards,
- Henrik
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encvorb.zip
Vorbis encoder, version one million
(18.83 KiB) Downloaded 30 times
Good signatures never die. They just fade away.

cruedag
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Re: VS1005 Ogg Vorbis encoder bandwidth

Post by cruedag » Mon 2018-02-12 12:21

Yes, Henrik, we got it! Here we have our full ultrasonic experience!

Thanks for your great work, you provide a high quality service not very common among other companies.

Regards
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Henrik
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Re: VS1005 Ogg Vorbis encoder bandwidth

Post by Henrik » Mon 2018-02-12 13:00

Phew,

glad it finally worked!

By the way, are you interested only in the spectrum up to 24 kHz, or would even more be good? I tried the Rec program with a fast 128 GB Lexar SD card and could record a Quality 10 mono Vorbis file at 96 kHz, as follows:
setclock -l90 86
auoutput -s2048 -b16 -r96000
auinput -s2048 -b16 -r96000
rec -cm -f -q10 d:test.ogg

At least it looked to me that there was spectrum up to about 35 kHz. Worth testing, perhaps?

Kind regards,
- Henrik
Good signatures never die. They just fade away.

cruedag
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Re: VS1005 Ogg Vorbis encoder bandwidth

Post by cruedag » Tue 2018-02-13 15:26

You're right, it worths to be tested: world above 24kHz is a mistery to me.

I will try and tell you.

Best regards,
Cristóbal

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